| 1 |
Fungicides are teh pesticides which |
- A. Control the growth of fungus
- B. Kill insects
- C. Kill plant
- D. Kill herbs
|
| 2 |
The disease can be eradicated by using pesticides. |
- A. Malaria
- B. Yellow fever
- C. Sleeping sickness
- D. All of these
|
| 3 |
The avoid teh formation of toxic compounds with chlorine which substance is used for disinfecting water. |
- A. KMnO4
- B. O3
- C. Alum
- D. Chloramines
|
| 4 |
The temperature in the incineration of industrial and hazardous waste process has a range. |
- A. 900 to 1000 <sup>o</sup>C
- B. 250 to 500<sup>o</sup>C
- C. 950 to 1300<sup>o</sup>C
- D. 500 to 900<sup>o</sup>C
|
| 5 |
Acid rain fist of all was observed by |
- A. Augus Smith
- B. Robert Hook
- C. Mosley
- D. Watson
|
| 6 |
The colloidal particles in raw water can be removed by |
- A. Coagulation
- B. Aeration
- C. Chlorination
- D. Hydration
|
| 7 |
On earth polar ice caps and glacier contains H2O |
|
| 8 |
The main pollutant of leather tanneries in the waste water is due the salt of. |
- A. Lead
- B. Chromium (VI)
- C. Copper
- D. Chromium (III)
|
| 9 |
Which one of the following is secondary pollutant of atmosphere. |
- A. CO
- B. NO2
- C. SO2
- D. H2SO4
|
| 10 |
Ecosystem is a smaller unit of |
- A. lithospher
- B. hydroshper
- C. atmosphere
- D. biosphere
|